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Retry on connection/security errors

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This commit is contained in:
Lonami Exo 2018-06-08 20:50:53 +02:00
parent 92b606a3e8
commit e36517845a
1 changed files with 24 additions and 8 deletions
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24
telethon/network/mtprotosender.py
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@ -39,11 +39,12 @@ class MTProtoSender:
A new authorization key will be generated on connection if no other
key exists yet.
"""
def __init__(self, session):
def __init__(self, session, retries=5):
self.session = session
self._connection = ConnectionTcpFull()
self._ip = None
self._port = None
self._retries = retries
# Whether the user has explicitly connected or disconnected.
#
@ -109,14 +110,31 @@ class MTProtoSender:
await self._connect()
async def _connect(self):
_last_error = ConnectionError()
for _ in range(self._retries):
try:
async with self._send_lock:
await self._connection.connect(self._ip, self._port)
except OSError as e:
_last_error = e
else:
break
else:
raise _last_error
# TODO Handle SecurityError, AssertionError
if self.session.auth_key is None:
_last_error = SecurityError()
plain = MTProtoPlainSender(self._connection)
for _ in range(self._retries):
try:
self.session.auth_key, self.session.time_offset =\
await authenticator.do_authentication(plain)
except (SecurityError, AssertionError) as e:
_last_error = e
else:
break
else:
raise _last_error
self._send_loop_handle = asyncio.ensure_future(self._send_loop())
self._recv_loop_handle = asyncio.ensure_future(self._recv_loop())
@ -146,8 +164,6 @@ class MTProtoSender:
try:
async with self._send_lock:
await self._connection.close()
except:
__log__.exception('Ignoring exception upon disconnection')
finally:
for message in self._pending_messages.values():
message.future.cancel()